Blisters When You Walk Higher Miles. Walking 10 miles (over 3 hours), even if you are used to walking for six miles, is more of a challenge. You can do it, but most people are likely to develop blisters in new places. Shoes and gear that worked fine for two hours may not be ideal for four hours.
How the Aurora Borealis occur. The Northern Lights are caused by the interaction of the solar wind - a stream of charged particles escaping the Sun - and our planet's magnetic field and atmosphere.
How the Aurora Borealis occur. 1  The Northern Lights are caused by the interaction of the solar wind-a stream of charged particles escaping the Sun-and our planet's magnetic field and atmosphere. When these field lines snap back into position, charged particles from the solar wind are again pushed into the Earth's atmosphere, causing aurora. 2  The more magnetic field lines that disconnect and snap back, the further south the Northern Lights can be seen.